Pipe cutter



PIPE CUTTER Filed Feb 16. 1928 2 Sheets$heet 1 J VZ. 0 0077 Jan. 15,1929. 7 1,699,027

c. M. sco'r-r PIPE CUTTER Filed Feb. 16, 1928 .2 Sheets-Sheet 2 Patented I UNHTED STATES CECIL M. SCOTT, OE SPRINGFIELD, MISSOURI.

PIPE CUTTER.

Application filed February 16, 1928.

This invention relates to a pipe cutter and has for its prime object to provide a structure which may be utilized in cut-tin a pipe in a ditch because of various adjusted positions in which th handle may be disposed to the cutting mechanism for operation thereof. Another very importain object of the invention resides in the provision of quick adjustable means for gauging the rollers and. the cutter in respect to the pipes in combination with the screw actuated means for forcing the rollers into engagement with the pipe for drawing the cutter into cutting engagement therewith.

A still further very important object of the invention resides in the provision of a pipe cutter of this nature which is simple in its construction, strong and durable, has its parts arranged in a compact and convenient manner, and is thoroughly efficient and reliable in use and operation.

lVith the above and numerous other objects in view as will appear as the description proceeds, the invention resides in certain novel features of construction, and in the combination and arrangement of parts as will be hereinafter more fully described and claimed.

In the drawing:

Figure 1 is a side elevation of the pipe cutter embodying the features of my invention Figure 2 is an edge elevation thereof,

Figure 3 is a fragmentary side elevation showing portions in section,

Figure l is an enlarged detail section taken substantially on the line %4 of Figurel.

Figure 5 is an enlarged section taken substantially on the line 5+5 of Figure 1,

Figure 6 is a transverse detail section taken through the handle on the line 6-6 of Figure 1 and Figure 7 is an enlarged detail. section taken, transversely through the handle on the line 7-'i' of Figure 1.

Referring to the drawing in detail it will be seen that a casing is formed of plates 5 and 6. The plate 5 has a flange 7 about the major portion of its periphery for bolding the plates 5 and 6 spaced, fastening elements 8 engaging the plate 6 with the flange 7. Both plates 5 and 6 are provided with openings 9 extending inwardly from one end. The U-shaped member 10 has its legs slidable between the plates alongside of Serial No. 254,734.

openings 9. The inner edges of the legs of the U-shaped member are formed with grooves 11. A carriage 12 is formed with tenons 13 slidable in the grooves 11. A pair of pressure rolls 14 are journaled in the can riage 12. A screw 15 is in swivel engagement with the carriage 12 and is threaded through the bight of the U-shaped member 10 and has a handle or knob 16 on the outer end thereof. The outer edges of the legs of the U-shaped member 10 are provided with ratchet teeth 17. mounted through openings in the flange 7 for engaging the ratchet teeth 17 and have springs 19 associated with the outer ends thereof for holding the pawls in operative position so as to prevent the U-shaped member from being slid outwardly from the easing except when the pawls are rocked against the tension of the spring. A cutter disk 20 on a shaft 21 is disposed in the casing, the ends of the shaft being journaled in the openings provided in plates 5 and 6. The pipe to be cut is inserted through the openings 9 and the U-shaped member 10 is slid inwardly until the rolls 14 and the disk 20 engage the surface of the pipe. Then the screw is threaded so as to tighten this engagement causing the cutter disk to bite into the pipe.

Obviously by oscillating the casing the pipe will be cut in somewhat the usual well known manner. An elongated handle is formed of two members 22 in the form of bars lying alongside of each other throughout the major portion of their length and then diverging from each other to terminate in spaced parallel portions 23 which are formed with longitudinally extending slots 24. The extremities of these portions 23 are r'ockable on the plates 5 and 6, straddling the casing, pivot bolts 25 being provided for this purpose with spacing washers 26 thereon. The outer ends of the bars are provided with longitudinally extending slots 27. A T-shaped rod has its cross piece 28 extending through the slots 27 and its shank 29 movable in registering channels 30 formed in the meeting faces of the bars 22. The plates have concentrically curved edges 31 provided with spaced notches 32 radiating from the bolt 25 and a pawl 34.- is disposed on the end of the shank 29 for. engaging in the notches 32. The pawl is provided with sideextensions Pawls 18 are rockably' extending into the slots 24-. A spring 36 is coiled about the shank 29 and impinges against the bars 22 at the point they diverge from each other. and against the pawl 34. It will be seen that by pulling outwardly on the cross piece 28 the shank 29 may be moved outwardly and the pawl released from one of the notches 32 so that the handle may be swung for engaging the pawl. in any of the ether notches 32. Thus it will be seen that in close quarters the casing may be oscillated so that the cutter disk will operate all around the pipe, tions at a time.

It is thought that the constructions, operation, and advantages of the invention will now be clearly understood without a more detailed description thereoi'. The present embodiment of the invention has been disclosed in detail merely by way of example since in actual practice it attains the features of advantage enumerated as desirable in the statement of the invention and the above description.

It will be apparent that changes in the details of 'constri'iction,- and in the combination and ai'rangement of parts may be resorted to without departing from the spirit or scope of the invention as hereinafter claimed or sacrificing any of its advantages.

Having thus described my invention, what I claim as new is:

1. A cutter of the class described (JOEL prising a casing with registering openings in the sides thereof, a rotary cutter journaled in the casing, a U-shaped member, in'ea'ns for slidably mounting the U-shaped member in the casing, pawl and ratchet means for adjustably holding the U-shaped member in the casing, a carriage slidable in the U-shaped member, screw means for moving the carriage in the U-shaped member, and rolls journaled in the carriage.

2. A cutter of the class described comprising a casing with registering openings in the sides thereof, a rotary cutter journaled in the casing, a U-shaped member, means for slidably mounting the U-shaped member in the casing, pawl and ratchet means for adjustably holding the U-shaped member in the casing, a carriage slidable in the U-shaped member, screw means for moving the carriage in the U-shaped memher, and rolls journaled in the carriage, a handle pivotally mounted on said casing and having a spring pressed pawl therein, said casing having notches with which said last mentioned pawl is engageable.

In testimony whereof I affix my signature.

CECIL M. SCOTT, 

